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James Donnelly — 1920 US Census Record
Linked across censuses1920 United States Federal Census · San Francisco, California
Our Model Tree links this James Donnelly across the 1910 and 1920 US Censuses in San Francisco, California (XGBoost, ~Confirmed) — first a son (b.~1898), then head of a 8-person household.
Age 22
b. ~1898
Male
Son
Born: California
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Donnelly |
| Given Name | James J |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco City |
| Est. Birth Year | ~1898 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Raymond Donnelly | Son | — | 16 | ~1904 |
| James Donnelly | Head | — | 49 | ~1871 |
| Hazel Donnelly | Daughter | — | 27 | ~1893 |
| Margaret Donnelly | Daughter | — | 18 | ~1902 |
| James Donnelly | Son | — | 22 | ~1898 |
| Clara Donnelly | Daughter | — | 9 | ~1911 |
| Margaret Donnelly | Spouse | — | 49 | ~1871 |
| Mary Donnelly | Other | — | 55 | ~1865 |
Census Appearances
1910
San Francisco, …
Son, age 11
San Francisco, California · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Son, age 22
San Francisco, California · implied b. ~1898 — 8 household members
| Surname | Donnelly |
| Given Name | James J |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links James Donnelly across 2 US Census years (1910 and 1920) in San Francisco, California, using XGBoost record linkage.
Show:
This person
Anchor record
James Donnelly
Son · 1920 · age 22 · b. ~1898 · California
★ You are viewing this record
Sibling
Hazel Donnelly
Sibling · 1920 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Donnelly
Sibling · 1920 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Donnelly
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Donnelly
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — San Francisco, California
Open full size
1920 US Federal Census — San Francisco, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu142unit:1093)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Harold M Dyer | 37 | head | Civil Engineer | Ohio |
| 52 | Amy B Dyer | 37 | wife | None | Nebraska |
| 53 | George B Hansen | 31 | head | Secretary | Sweden |
| 54 | Signe M Hansen | 31 | wife | None | Sweden |
| 55 | Lester W Macdonald | 34 | head | Manager | Maine |
| 56 | Helen S Macdonald | 33 | wife | None | Pennsylvania |
| 57 | Robert W Macdonald | 9 | son | None | California |
| 58 | Sada Anne M Macdonald | 63 | mother | None | Pennsylvania |
| 59 | G Grandialvini | 35 | head | Manager | California |
| 60 | Annabella Grandialvini | 31 | wife | None | Italy |
| 61 | Clara Grandialvini | 5 | daughter | None | California |
| 62 | Frank Mochi | 65 | lodger | None | Italy |
| 63 | Leon H Nishkian | 37 | head | Civil Engineer | Turkey |
| 64 | Elena Nishkian | 36 | wife | None | California |
| 65 | Byron Nishkian | 8 | son | None | California |
| 66 | Albert H Sherman | 39 | head | Salesman | Massachusetts |
| 67 | Irene Sherman | 26 | wife | None | California |
| 68 | Ruth Sherman | 5 | daughter | None | California |
| 69 | Carol L Sherman | 3 | daughter | None | California |
| 70 | Frederick B Bartlett | 41 | head | Manager | California |
| 71 | Marguerite Bartlett | 37 | wife | None | California |
| 72 | Rebecca Jane W Bartlett | 63 | mother-in-law | Salesman | California |
| 73 | Mary Shea | 60 | — | None | Ireland |
| 74 | Nan E Shea | 34 | daughter | Clerk | California |
| 75 | Timothy T Shea | 28 | son | Porter | California |
| 76 | Mary A Shea | 26 | daughter | None | California |
| 77 | Helen M Shea | 21 | daughter | Clerk | California |
| 78 | John M Shea | 21 | son | None | Ireland |
| 79 | Reginald Hunter Rustin | 49 | head | None | California |
| 80 | Rose R Rustin | 44 | wife | None | California |
| 81 | Marcus E Rustin | 7 | daughter | None | California |
| 82 | Eugene H Rustin | 6 | son | None | California |
| 83 | Mark J Rustin | 5 | son | None | California |
| 84 | Reginald Hunter Jr Rustin | 2 | son | None | California |
| 85 | James Donnelly | 49 | head | Clerk | Ireland |
| 86 | Margaret M Donnelly | 49 | wife | None | California |
| 87 | Hazel Donnelly | 27 | daughter | Clerk | California |
| 88 | James J Donnelly THIS PERSON | 22 | son | None | California |
| 89 | Margaret C Donnelly | 18 | daughter | None | California |
| 90 | Raymond G Donnelly | 16 | son | None | California |
| 91 | Clara E Donnelly | 9 | daughter | None | California |
| 92 | Mary A Donnelly | 55 | sister-in-law | None | Germany |
| 93 | Joseph B Dryden | 55 | head | Secretary | California |
| 94 | Gladys A Dryden | 50 | wife | None | Alaska |
| 95 | Russell J Dryden | 22 | son | None | California |
| 96 | Virginia Dryden | 17 | daughter | None | California |
| 97 | Maurice H Lessard | 47 | head | President | California |
| 98 | Mark E Lessard | 40 | wife | None | California |
| 99 | Marion E Lessard | 17 | daughter | None | California |
| 100 | Maurice H Lessard | 13 | son | None | California |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)